PJ Mahidol Pibulsonggram
BIOGRAPHY
Mahidol Pibulsonggram (Thai: มหิดล พิบูลสงคราม; born 15 December 2003), known as PJ, is a Thai actor and singer.
He was born in Chiang Mai into a family with two kinds of public history behind it. He is the younger brother of the actor and musician Krissanapoom Pibulsonggram, who works as Jaylerr, and a descendant of Plaek Phibunsongkhram, the former prime minister of Thailand. He was educated at The Prince Royal’s College in Chiang Mai and went on to the Faculty of Communication Arts at Chulalongkorn University in Bangkok.
His acting career began in 2022 with the series Bad Guys, followed by Good Doctor, Homeroom 29 and Happiness. In 2025 he played Baabin Saebal, one of the four leads of the coming-of-age series GELBOYS, and returned to the role in 2026 for Gelboys Season 2: Fandom Status on iQIYI.
Baabin is the friend Fou4Mod turns to when he wants to make Chian jealous, which places the character in the least comfortable position in the group: wanted for what his presence does to someone else. The same year he released his first solo single, Gu ja Crazy (ไอ้บ้า), which was used in connection with the series.
BLGLFlix editorial view
His surname belongs to Thai political history and his brother is an actor, and both facts are on the record.
Mahidol Pibulsonggram, known as PJ, born 15 December 2003 in Chiang Mai, plays a lead in GELBOYS across its 2025 and 2026 seasons. He is the younger brother of the actor and musician Krissanapoom Pibulsonggram, who works as Jaylerr, and a descendant of Plaek Phibunsongkhram.
Two kinds of inheritance sit on one page and they work differently. A brother already in the industry supplies something practical: an understanding of how contracts and schedules work, and people who will take a call. A historical family name supplies recognition and nothing else, and in a country where that particular name carries real weight it is the sort of thing a performer is asked about rather than helped by.
Neither is a substitute for the work, and this page records both because both are documented rather than because either explains anything.
He came out of The Prince Royal’s College in Chiang Mai and studies communication arts at Chulalongkorn, and his debut was in 2022 in Bad Guys, three years before the role that made him visible.
His birth date, birthplace, education and dated debut are all present. No agency is recorded, because nothing citable names one.
PROFILE DETAILS
- Native Name
- มหิดล พิบูลสงคราม
- Nickname
- PJ (พีเจ)
- Pronouns
- he/him
- Born
- (Age 22)
- Birthplace
- Chiang Mai, Thailand
- Gender
- Male
- Western Zodiac
- Sagittarius ♐
- Chinese Zodiac
- Goat 🐐
- Nationality
- Debut
- 2022 — Bad Guys (2022)
- Years Active
- 2022-present
- Languages
- Thai (native)
- Skills
- Acting, Singing
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